(0 18 2)(1 7 4)(3 17 15 14 12)(5 10 8)(6 21 20)(9 19 16 13 11)
ALLOWS (11/8)-SEQUENCE
1: (1 7 9)

(0 18 2)(1 19 16 13 11 9 4)(3 17 15 14 12)(5 10 8)(6 21 20)(7)
2: (5 10 8)

(0 18 2)(1 19 16 13 11 9 4)(3 17 15 14 12)(5)(6 21 20)(7)(8)(10)
3: (4 16 9)

(0 18 2)(1 19 16)(3 17 15 14 12)(4)(5)(6 21 20)(7)(8)(9 13 11)(10)
4: (3 17 15)

(0 18 2)(1 19 16)(3 14 12)(4)(5)(6 21 20)(7)(8)(9 13 11)(10)(15)(17)